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		                        | National Stock Number:
 5985-00-977-1247
 
 Federal Supply Class:
 5985
 
 National Item Identification Number:
 009771247
 
 Description:
 ATTENUATOR,VARIABLE
 
 Detail:
 A device for reducing the strength of an alternating current signal either continuously or in steps, without causing appreciable signal distortion, by maintaining substantially constant output and/or input impedance match. Continuously variable resistive devices must consist of at least two sections or one section with at least two rotating contacts. The item must have an overall attenuation rating. Includes tandem mounted variable resistors designed to function as an attenuator but whose terminals are not connected. See also RESISTOR, VAIABLE (as modified).
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 Manufacturer Information:
 
 | 500L4 | 12436 | BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. |  | 7164469P1 | 24446 | GENERAL ELECTRIC COMPANY |  | 7164469P1 | 33173 | MPD COMPONENTS, INC. | 
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 Techincal Specification:
 
 | APPLICATION DESIGN | AUDIO |  | ATTENUATION VARIATION METHOD | CONTINUOUS |  | BODY DIAMETER | 1.625 INCHES NOMINAL |  | BUSHING LENGTH | 0.375 INCHES NOMINAL |  | IMPEDANCE RATING IN OHMS | 500.0 INPUT |  | MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER | 0.375 INCHES |  | MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR | UNEF |  | MOUNTING FACILITY TYPE AND QUANTITY | 1 THREADED BUSHING |  | MOUNTING THREAD QUANTITY | 32 PER INCH |  | OVERALL ATTENUATION ACCURACY IN DECIBELS | -2.85 TO 2.85 |  | OVERALL ATTENUATION RANGE IN DECIBELS | +0.0 TO 38.0 |  | POWER RATING | 4.0 WATTS AVERAGE |  | SCHEMATIC DIAGRAM DESIGNATOR | UNBALANCED "LL" |  | TERMINAL TYPE AND QUANTITY | 4 TAB, SOLDER LUG | 
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